This is one in a series of podcasts documenting Operation Deep Freeze (www.operationdeepfreeze.com), a Greenwich-based art and food growing project. It was recorded at a workshop at Robert Owen early years centre in Greenwich. Paul Green (www.avantgardening.org) explains the day’s activities. We hear the sounds of staff, volunteers and pupils building a raised bed, digging and watering the soil, planting seedlings and making ice-cream.